In the past years, the mean of Math test scores in a 4th grade class was 18. The following is a set of scores from 10 students from this year. A hypothesis testing needs to be conducted in order to compare the means to see if this year’s students (based on this year's sample) are performing at the same level as the previous years. < Data 3-1 >Subject #Score(Score)^212040021316931316942040052984163210247235298204009256251015225Total2104782 a) Is there a significant difference between the sample mean of scores and the population mean? Carry out all 9 steps of the hypothesis testing. Use alphaα=0.05b)Calculate the estimated population standard deviation of scores in the sample

Given that a..We have to hypothesis test for the claim that the population mean is different than…

Answered: In the past years, the mean of Math…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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In the past years, the mean of Math test scores in a 4th grade class was 18. The following is a set of scores from 10 students from this year. A hypothesis testing needs to be conducted in order to compare the means to see if this year’s students (based on this year's sample) are performing at the same level as the previous years.

< Data 3-1 >

Subject #	Score	(Score)^2
1	20	400
2	13	169
3	13	169
4	20	400
5	29	841
6	32	1024
7	23	529
8	20	400
9	25	625
10	15	225
Total	210	4782

a) Is there a significant difference between the sample mean of scores and the population mean? Carry out all 9 steps of the hypothesis testing. Use alphaα=0.05

b)Calculate the estimated population standard deviation of scores in the sample

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